Follow one session across routes.

This working prototype implements the behavior described in the PAP announcement: discovery, a guest session, company-selected website/API/agent routes, a test read/write grant, and continuity.

Pre-spec experiment: PAP v0.1 is not public. The grant below is not OAuth and no real customer account is used.

1 · Start guest session

No session yet.

2 · Test authorization

3 · Continue session

Start a session, then ask a public catalog question or request protected order work.